Weather History for St. Charles, MO

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Sunday, March 25, 2012

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 65 °F 50 °F  
Max Temperature 75 °F 60 °F 84 °F (1907)
Min Temperature 55 °F 40 °F 11 °F (1955)
Degree Days  
Heating Degree Days 0 16  
Month to date heating degree days 500  
Since 1 July heating degree days 4098  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Growing Degree Days 15 (Base 50)    
Moisture  
Dew Point 56 °F    
Average Humidity 74    
Maximum Humidity 93    
Minimum Humidity 53    
Precipitation  
Precipitation 0.00 in 0.12 in 3.58 in (1904)
Month to date precipitation 2.57  
Year to date precipitation 7.21  
Snow  
Snow 0.00 in 0.10 in 3.00 in (1955)
Month to date snowfall 2.1  
Since 1 July snowfall 17.1  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.02 in    
Wind  
Wind Speed 6 mph (North)    
Max Wind Speed 9 mph    
Max Gust Speed -    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Mar. 25, 2012 Rise Set
Actual Time 6:56 AM CDT 7:19 PM CDT
Civil Twilight 6:29 AM CDT 7:45 PM CDT
Nautical Twilight 5:58 AM CDT 8:17 PM CDT
Astronomical Twilight 5:26 AM CDT 8:49 PM CDT
Moon 8:10 AM CDT (3/25) 10:32 PM CDT (3/25)
Length of Visible Light 13h 15m
Length of Day
12h 22m
Waxing Crescent, 9% of the Moon is Illuminated
Mar 25
Waxing Crescent
Mar 30
First Quarter
Apr 6
Full
Apr 13
Last Quarter
Apr 21
New

Hourly Weather History & Observations

Time (CDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 60.1 °F 55.9 °F 86% 29.94 in 10.0 mi NW 5.8 mph - N/A   Clear
1:54 AM 60.1 °F 55.9 °F 86% 29.95 in 10.0 mi NW 6.9 mph - N/A   Mostly Cloudy
2:54 AM 60.1 °F 55.9 °F 86% 29.96 in 10.0 mi NNW 8.1 mph - N/A   Clear
3:54 AM 59.0 °F 55.0 °F 87% 29.97 in 10.0 mi NNW 6.9 mph - N/A   Clear
4:54 AM 57.9 °F 55.0 °F 90% 29.97 in 9.0 mi North 5.8 mph - N/A   Clear
5:54 AM 57.9 °F 55.0 °F 90% 29.99 in 8.0 mi North 5.8 mph - N/A   Clear
6:54 AM 57.9 °F 55.0 °F 90% 30.01 in 8.0 mi NNW 8.1 mph - N/A   Overcast
7:54 AM 59.0 °F 55.0 °F 87% 30.03 in 7.0 mi NNW 8.1 mph - N/A   Overcast
8:54 AM 61.0 °F 55.9 °F 83% 30.05 in 8.0 mi NNW 6.9 mph - N/A   Overcast
9:54 AM 64.9 °F 55.9 °F 73% 30.05 in 10.0 mi North 5.8 mph - N/A   Clear
10:54 AM 68.0 °F 55.9 °F 65% 30.06 in 10.0 mi NNE 9.2 mph - N/A   Clear
11:54 AM 70.0 °F 57.0 °F 63% 30.06 in 10.0 mi Variable 5.8 mph - N/A   Scattered Clouds
12:54 PM 71.1 °F 57.0 °F 61% 30.05 in 10.0 mi North 8.1 mph - N/A   Mostly Cloudy
1:54 PM 71.1 °F 55.0 °F 57% 30.04 in 10.0 mi North 3.5 mph - N/A   Scattered Clouds
2:54 PM 73.9 °F 57.0 °F 55% 30.01 in 10.0 mi ENE 6.9 mph - N/A   Mostly Cloudy
3:54 PM 72.0 °F 55.0 °F 55% 30.01 in 10.0 mi Variable 3.5 mph - N/A   Scattered Clouds
4:54 PM 73.0 °F 55.0 °F 53% 30.01 in 10.0 mi NE 4.6 mph - N/A   Mostly Cloudy
5:54 PM 72.0 °F 55.9 °F 57% 30.02 in 10.0 mi ESE 5.8 mph - N/A   Overcast
6:54 PM 72.0 °F 55.9 °F 57% 30.02 in 10.0 mi Calm Calm - N/A   Overcast
7:54 PM 70.0 °F 55.9 °F 61% 30.03 in 10.0 mi Calm Calm - N/A   Overcast
8:54 PM 66.0 °F 57.9 °F 75% 30.04 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:54 PM 61.0 °F 57.9 °F 90% 30.05 in 9.0 mi Calm Calm - N/A   Clear
10:54 PM 60.1 °F 55.0 °F 83% 30.05 in 9.0 mi Calm Calm - N/A   Clear
11:54 PM 55.9 °F 54.0 °F 93% 30.05 in 8.0 mi Calm Calm - N/A   Clear